pipe 0 chn 0 get vb fail, size: 12441600

设备hi3519dv500

运行sample_aiisp，程序能正常编码推流，退出后报告：
[sample_comm_venc_get_venc_stream_proc]-2703: get venc stream time out, exit thread

之后打印 cat /dev/logmpp 信息：
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.
<3>[    vi] [func]:vi_get_frame_vb_blk [line]:113 [info]:pipe 0 chn 0 get vb fail, size: 12441600.

vi、vpss、venc、aiisp、media-mem的信息在附件，我该怎么排查问题，求问！